Homework Help: math

Posted by Anonymous on Friday, September 4, 2009 at 5:15pm.

How do I write this problem?

to recieve a grade B- in a math course, you must have a mean of 83 on five tests (4 tests + one final) all 100 pts maximum each. Your scores thus far are 85,79,82,and 81. How many points must you have on the final, to earn the B-? write down your work..

math - Ms. Sue, Friday, September 4, 2009 at 5:18pm
0.83 * 500 = 415

You need a total of 415 points.

Your test grades so far = 327

415 = 327 = 88

You need at least a score of 88 on the final.
math - Anonymous, Friday, September 4, 2009 at 5:24pm
thank you ms. Sue.. the four scores threw me off and wasn't sure how to start the formula or problem
math - Ms. Sue, Friday, September 4, 2009 at 5:27pm
You're welcome.

I just noticed that I have a typo:

415 - 327 = 88
math - Anonymous, Friday, September 4, 2009 at 5:41pm
thank you you are a life saver

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